Vibrator structure job spark coils



Dgc. 29 192 5.

M. H, olcKsony VIBRATOH STRUCTURE FOR SPARK COILS Filed August 1925gmcnl'or Patented Dec. 29, 1925.

UNITED STATES MARION H. DICKSON, OF LEWISTQWNJILLINOIS.

VIBRATOR STRUCTURE FOR SPARK COILS.

Application filed August 3, 1925.

To all whom it may concern:

Be it known that I, MARION H. DIGKSON, a citizen of the United States,residing at Lewistown, in the county of Fulton and State of Illinois,have invented certain new and useful Improvements in a VibratorStructure for Spark Coils, of which the following is a specification.

This invention relates to spark or ignition coils for the ignitioncircuits of internal combustion engines, and particularly toimprovements in the vibrator mechanism thereof.

An object of the invention resides in providing a vibrator mechanism forignition coils wherein a plurality of contact points are carried by boththe vibrating and stationary elements of the vibrator structure, whichare adapted for cooperation so that any two points can be brought intoengagement for control of the sparking circuit .through the coil, thusproviding for the change of contact points tobring new contact pointsinto cooperation without changing the vibrator or stationary elements ofthe vibrator structure.

The in ention comprehends other objects directed to the specificstructural relation of parts which are more particularly pointed out inthe following detailed description and in the claims directed to apreferred form of the invention, it being understood however thatvarious changes in the size, shape and arrangement of these parts may bemade without departing from the spirit and scope of the invention ashereinafter set forth.

In the drawing forming part of this application:

Figure 1 is a plan view of a coil unit showing the vibrator structurethereon.

Figure 2 is a side elevation of the vibrator structure and the upperportion of the coils shown in Figure 1 with the im' proved inventionapplied thereto.

Figure 3 is a detail view of the vibrator element.

Figure 4 is a detail elevational view of the stationary element of thevibrator structure.

While this invention is illustrated and designed more particularly foruse in conjunction with the spark coils of ignition systerms used on theFord type of automobiles, it is to be understood that it may be usedwith any similar type of sparking coils with of the housing 1.

Serial No. 47,867.

closure made.

Figure 1 illustrates the housing for the main portion of the spark coilstructure in which is mounted the laminated core 2, projecting slightlybeyond the upper end The usual vibrator structure of the type of coilabove mentioned includes a pair of supporting posts 3, on which isrigidly mounted the stationary element 4 in the form of a plate memberwhich carries the stationary contacts for cooperation with the vibratorcontacts as will be described. The forward end of the plate member 4 isformed with an opening to receive the threaded rod 5 which receives theadjusting nut .6 forthe purpose of changing the position of thestationary contacts relative to the vibrator contacts for adjusting thestroke of vibration of the vibratingelement. A fitting 7 is mounted onthe upper end of the casing 1 of the coil, and supports the resilientstrip vibrator element 8 having one end secured to the fitting bysuitable screws 9. This fitting forms one terminal of the electriccircuit through the vibrator structure, while the posts 3 form the otherterminals thereof, which are both connected to the coil in apredetermined well known manner within the housing 1.

The present invention resides in a resilient strip 10, secured bysuitable rivets or the like 11, at one end to the, end portion of theplate member 4, between the posts The opposite end of the resilientstrip 10 rotatably mounts the disc 12 by the stud connection 13extending through the disc and the resilient strip 10. This disc 12 isprovided adjacent its periphery in spaced relation about the same with aplurality of contact points 14 which are adapted for sparkingcooperation with contact points carried by the vibrator element 8 whichwill be presently described.

A disc member 15 is rotatably mounted on the free end of the vibratorelement 8 through the medium of the rivet or stud 16 extending throughthe central portion of the disc and the end of the vibrator element.This disc is directly over the end of the pole piece 2 of the coil, andcarries in spaced circumferential relation adjacent its periphery, aplurality of contact polnts 17 These points are arranged in such amanner that upon the securing of the vibrator element 8 to the fitting7, one of the points may be properly positioned under one of the points14 on the disc member carried by the stationary element for controllingthe electric circuit through the vibrator mechanism. In the constructionillustrated all of the points on one disc member will be positioned foroverlying all of the contact points on the other disc member, but due tothe angularityof the resilient member 10 with respect to the vibratoryelement 8 only the forward contacts on each disc member indicates that18 will engage in the deenergized position. of therstructure forcontrolling the circuit therethrough. There will always be a small spacebetween the other contacts on the disc member which may be moved byrotation of the disc members on the respective partsfor positioning inthe position of the contact points as indicated at" 18 so that anycontact point on any one of the disc members may be brought into circuitcontrolling relation with any contact on the other disc member. Thesedisc mem bers may be provided with protections 19 from the peripherythereof for providing suitable handles bywhich the discsv may be graspedfor manualrotationto change the engaging contacts of the vibratorstructure.

From the above description it will thus be clearly understood that aplurality of con tact points are provided on the respective elements ofa vibrator structure for spark coilswherein any one of the contactpointscarried by, eithermember may be brought into, engagement, with any oneof the contact points on the other element in order that new and smoothcontact points may be used for controlling the circuit through thevibrator structure without removing or replacing either of the vibratorelements,

merely by rotating the disc members 15 and 12 to position the desiredcontact points in the positionindicated by the numeral 18 forcooperative engagement in circuit controlling relation,

Having thus described the invention, what I, claim, is:-

1. A spark coil for ignition systems of an internal combustion enginehaving a vibratormechanism; comprising a stationary element, a vibratoryelement, rotatable members, one of said rotatable members being mountedon each element, and a plurality of contact points mounted in spacedrelation on said rotatable members, any one contact member being adaptedfor positioning to engage any one contact on the other member forcircuit controlling cooperation.

2. A spark coil for ignition systems of an internal combustion enginehaving a vibrator mechanism; con'lprising a stationary element, avibrator element, disc members rotatably mounted on each of saidelements in opposed relation, and a plurality of contact points mountedin spaced relation on each disc member, one contact point on one memberbeing adapted for sparking cooperation with any one contact on the othermember;

3. A spark coil for ignition systems of an internal combustion enginehaving a vibrator mechanism; comprising a stationary ele ment', avibrator element, disc members rotatably mounted on each of saidelements in opposed relation, and a plurality of contact points mountedin spaced relation on each disc member, one contact'point on one memberbeing adapted for'sparking cooperation with any one contact on the othermember, and members on said disc members engageable'for manualrotationof the members to change cooperating contact points.

4. A spark coil for ignition systems of an internal combustion enginehaving a vibrator mechanism,comprising a stationary element, a vibratoryelement, movable members, one of said members-being mounted oneachelement, and a plurality of contact points mounted in spacedrelation on said members, any one. contact member being adapted forpositioning to engage any one contact on the other member for circuitcontrolling cooperation.

In testimony whereof I afiix my signature.

MARION I-I. DIGKSON.

